1 files changed, 117 insertions, 0 deletions
diff --git a/lwip/ports/drivers/tms570_emac.h b/lwip/ports/drivers/tms570_emac.h
new file mode 100644
index 0000000..26993e9
--- /dev/null
+++ b/lwip/ports/drivers/tms570_emac.h
@@ -0,0 +1,117 @@
+#ifndef EMAC_H_
+#define EMAC_H_
+
+#include <stdbool.h>
+#include "netif/etharp.h"
+#include "lwip/sys.h"
+#include "bsp/tms570.h"
+
+/*to rtems*/
+#define EMAC_CTRL_RAM_BASE      (0xFC520000U)
+#define SIZE_EMAC_CTRL_RAM        0x2000U
+
+
+
+
+/* Packet Flags EMAC_Desc - tx and rx */
+#define EMAC_DSC_FLAG_SOP         0x80000000u
+#define EMAC_DSC_FLAG_EOP         0x40000000u
+#define EMAC_DSC_FLAG_OWNER       0x20000000u
+#define EMAC_DSC_FLAG_EOQ         0x10000000u
+#define EMAC_DSC_FLAG_TDOWNCMPLT  0x08000000u
+#define EMAC_DSC_FLAG_PASSCRC     0x04000000u
+/* Packet Flags - in addition to rx */
+#define EMAC_DSC_FLAG_JABBER      0x02000000u
+#define EMAC_DSC_FLAG_OVERSIZE    0x01000000u
+#define EMAC_DSC_FLAG_FRAGMENT    0x00800000u
+#define EMAC_DSC_FLAG_UNDERSIZED  0x00400000u
+#define EMAC_DSC_FLAG_CONTROL     0x00200000u
+#define EMAC_DSC_FLAG_OVERRUN     0x00100000u
+#define EMAC_DSC_FLAG_CODEERROR   0x00080000u
+#define EMAC_DSC_FLAG_ALIGNERROR  0x00040000u
+#define EMAC_DSC_FLAG_CRCERROR    0x00020000u
+#define EMAC_DSC_FLAG_NOMATCH     0x00010000u
+
+/********** TI structs ***********/
+
+/* EMAC TX Buffer descriptor data structure */
+struct emac_tx_bd {
+  volatile struct emac_tx_bd *next;
+  volatile u8_t *bufptr;
+  volatile u32_t bufoff_len;
+  volatile u32_t flags_pktlen;
+
+  /* helper to know which pbuf this tx bd corresponds to */
+  struct pbuf *pbuf;
+};
+
+/* EMAC RX Buffer descriptor data structure */
+struct emac_rx_bd {
+  volatile struct emac_rx_bd *next;
+  volatile u8_t *bufptr;
+  volatile u32_t bufoff_len;
+  volatile u32_t flags_pktlen;
+
+  /* helper to know which pbuf this rx bd corresponds to */
+  struct pbuf *pbuf;
+};
+
+/**
+ * Helper struct to hold the data used to operate on a particular
+ * receive channel
+ */
+struct rxch{
+  volatile struct emac_rx_bd *active_head;
+  volatile struct emac_rx_bd *active_tail;
+  volatile struct emac_rx_bd *inactive_head;
+  volatile struct emac_rx_bd *inactive_tail;
+  s32_t freed_pbuf_len;
+};
+
+/**
+ * Helper struct to hold the data used to operate on a particular
+ * transmit channel
+ */
+struct txch {
+  volatile struct emac_tx_bd *active_head;
+  volatile struct emac_tx_bd *active_tail;
+  volatile struct emac_tx_bd *inactive_head;
+  volatile struct emac_tx_bd *inactive_tail;
+};
+
+/**
+ * Helper struct to hold private data used to operate the ethernet interface.
+ */
+struct tms570_netif_state {
+  /* emac instance number */
+  u32_t inst_num;
+
+  /* EMAC configuration register-window base address */
+  volatile tms570_emacm_t *emac_base;
+
+  /* EMAC controller base address */
+  volatile tms570_emacc_t *emac_ctrl_base;
+  volatile u32_t emac_ctrl_ram;
+
+  /* MDIO base address */
+  volatile tms570_mdio_t *mdio_base;
+
+  /* The RX/TX channel 0 state description
+   * (keeps track of used/freed Buffer Descriptors)
+   */
+  struct txch txch;
+  struct rxch rxch;
+
+  /* Semaphores used for waking up the threads processing
+   * RX/TX packets in teh deferred manner.
+   * Semgive is called in particular RX/TX interrupt
+   */
+  sys_sem_t intPend_sem;
+
+  u32_t phy_addr;
+  uint32_t waitTicksForPHYAneg;
+};
+
+/********************************************** End of Statistics **********************************************/
+
+#endif /* EMAC_H_ */